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Finding the Fourth Proportional to 248,568.90, 372,950.55 and 90,813.30

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Solution

The fourth proportional to 248,568.90, 372,950.55 and 90,813.30 is: 136,255.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,568.90 : 372,950.55 = 90,813.30 : x
  2. Step 2: Convert to fraction form
    248,568.90/372,950.55 = 90,813.30/x
  3. Step 3: Cross multiply
    248,568.90x = 372,950.55 × 90,813.30
  4. Step 4: Simplify right side
    248,568.90x = 33,868,870,182.32
  5. Step 5: Solve for x
    x = 33,868,870,182.32/248,568.90
  6. Step 6: Final answer
    x = 136,255.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.